Gas-regulating device



Dec. 14 1926. 1,610,889

'.G. Ff SCHMIDT GAS REGULATING DEVICE Filed oct. 22, 192s Patented Dec. lei; 1926.

narran GUSTA'VE F. SCI-LMDT, 0F CHlGAKG-O, LLNOIAS.

GAS-REG'LATING DEVICE.

Application filed October 22, 1923.

My invention relates to a device for regulating the ilow ot gas and more especially for controlling the supply or flow of the gas to the burners of a vgas heater or gas stove, without otlering restrictions to the proper dow.

rlhe invention has tor its object the provision of a device which may be readily applied to a coclr direct or to any type oi gas cocli vas at present employed by the use ot a connecting member or nipple.

Another object oit my invention is to provide a device whereby regulation or control of the gas flow may be obtained without necessitating any change or interfering ink any way with the air control ot the burner.; the device being easily adjustable without the use oi special tools and enabling regulation or adjustment to a nicety7 while the general cross-sectional shape or contour of the issuing gasstreain vfor normal uses may be ina-intained to provide stability land velocity to the gas stream so as to induce entrainmenl of the requisite amount of air.

A further object of the invention is to provide a device which will be comparatively ycheaptoy manufacture; composed of few parts and therefore easy to assemble and simple in adjustment.

The above enumerated objects and advan-4 tages :as well as .other advantages inherent in the construction will all be more fully comprehended from the detailed description of the drawing, wherein:-

Figure l is a side `elevation oit my invention applied to a gas-cockor well known-v type of shut-oft valve, in conjunction with a portion of the mining chamber or burner.

Figure 2 is an enlarged longitudinal sectional view, taken substantially on the line 2-2 ot Figure l.

Figure 3 is a longitudinal sectional view of amodiiied form of the gas controlling` tube or pin.

Figure l vis a similar view showing a modi lied manner of attach-ment. y

Figure `5 is a perspective view oic a modilied form ci: the gas-coiitrolling tube or pin shown in Figure 2. v Y Y Figure 6 is a perspective View of the gas controlling tube or pin shown in Figure 3.

Figure Y 'is a .sectional perspective view ot a modified form of the coupling or attachment shown in Figure 4.

My invention relates to a device for regulating the lflow ot gas to a burner and at the Serial No. 659,939.

same time to discharge the gas in definite coclr or key valve is secured at 16. Where the body ot the valve 1G at its outlet end is provided with an externally .threaded nipple if( and the outlet provided with the internal` shoulder as at 118, see Figure 2, my iniproved gas regulator may he secured directly to the valve 16.

rlhe regulator comprises a short'` hollow pin or small tubular member 19 which is adapted tov abut against the shoulder 158;` the pin or tubular member being providedf with one or more longitudinal slots disposed` transversely therethrough and extending to the delivery end of the pin or member 191, as `shown at 20 in Fig. 2. The bore of the pin or member 19 may either taper toward the delivery end or be reduced iin diameter at 1a short distance from the delivery end.

as by means ot the inwardly projectinglips.`

or portions 2l as shown in Figure `2. Thev pin orftubulfar member is .intended to -be 0i suihciently resilient metal, such as brass, with 'the walls prefer-ably of comparativetliicliness, in orde-r that the slit end or the segmental portions may be compressed or brought into closer relation with each other than normally is the case, or into abutting relation, upon proper inanipulationoi the controlling member QQ-andalso to return to normal position as soon as the controlling member 22T is turned in the opposite1k direc'- tion.' i Y @they pin `or tubularmember I9 is Vprovi-ded with ya smooth outer surface so as to be free -to slide in the member 22 and the outeror ico discharge end of the member `I9 is beveled or A tapered as shown at -23 which conforms to the taper or bevel on the interi-or of member .22' as shown ati. v

ber 19; while the inner end of thecontrolling member 2211s shown preferably enlarged '1105 rllh-e controlling member 22 is in the nature of a sleeve adapted to have more or lessA snug sliding lit with the pin or tubular'mem the inner suri'ace of the enlarged portion of the sleeve is threaded to screw onto the threaded nipple 17 of the valve member 16. The threaded end of controlling member 22 is made slightly longer than the threaded nipple in order that the controlling member 22 may be screwed onto the nipple a distance suilicient to cause the outer end of the sleeve or member 22 to completely compress the slotted or slit end of the pin or tubular member 19 through which the gas is conveyed.

In Figures 1 and 2 I show my invention applied to av well known type of mixing chamber 26 in advance oi: the burner proper; the flared inlet end of the mining chamber being usually provided with a transverse web or portion 27 which in turn is provided with a threaded nipple 28 to receive the air-controlling disc 29 which is adapted to screw lengthwise oi" the nipple 28 so as to control the size ot the air opening into mixing chamber 26. In the construction shown in Figure 2 the controlling member or sleeve 22 is shown with a smooth external surface so as toV have a sliding ht with the threaded nipple 28, thereby enabling quick and easy assembling of the parts.

In Figure 8 l show a modiiied form of the controlling device, wherein the pin or tubular member is provided with a single slot 81 disposed transversely through the walls of the member, thus dividing the discharge end of the member into two segmental slightly separated portions; while the bore of the member 80, like that in Figure 2 is shown reduced at the delivery end thereoi by means or the lips or inwardly projecting portions 82, 82 lsimilar to those shown at 21 in Figure 2. With this construction, like that shown in Figure 2, a complete contraction oi the segmental end portions of the pin or tubular member will result in a circular opening or discharge outlet for the gas; while on the other hand a separation of the segmental portions will cause the gas issuing from the device to be discharged with a central cylindrical portion having tour radiating wing portions, when the device shown in Figure 2 is employed or a cylindrical portion having twov radiating wing portions when the device shown in Figure 8 is used. The construction shown in Figure 8 also diiiers from that shown in Figure 2 in that the controlling member or sleeve88 is provided with a threaded end 8e adapted to screw into the inlet end or mining chamber oi a` burner; while the enlarged faceted end ot" the controlling member 88 is internally threaded to screw onto the threaded nipple of the body of the valve 16 similar to that shown in Figure 2.

In Figure 1 l show a further modification of the invention in that the device involves a coupling member or connecting nipple 85 having the `intermediate wrench-receiving surfaces 8G and the two threaded ends; the

one end being adapted to screw into the body otl a valve as at 87 5 while the other end is provided with an internal shoulder 88 against which the pin or tubular member 19 abuts. rEllis last mentioned end of the coupler or connecting nipple 85 is threaded to receive the controlling member or `sleeve 88, which, like sleeve member 22 has its outer end provided with an internal bevel or tapered surface as at 24 to correspond with the beveled surface at the outer end of the pin or tubular member 19. As is apparent from the construction shown, inward movement of the pin 19 is prevented by the shoulder 88 oi the coupling or connecting nipple 85, so that when the controlling member or sleeve 88 is screwed onto thel coupler or connecting nipple 85, the beveled suri'ace 2-1 of the controlling member will force the slightly separated segmental portions at the discharge end of the pin or tubular member 19 into closer relation with each other than normally is the case; the proximity o1"A the segmental portions to each other being determined by the extent to which the controlling member or sleeve 88 is screwed onto the coupler or connecting nipple 85. On the other hand, the unscrewing of the controlling member or sleeve 88 will permit the outer end ot the pin or tubular member 19 to return to normal position due to the resil^ iency oi' the metal.

instead ot providing the coupler or connecting nipple 85 with an internal shoulder 88, itmay be of the construction shown in Figure 7 where the connecting nipple 89 is externally similar to that shown at 85 in Figure et, while the bore is tapered toward one end as shown at 10. "With this construction, the pin or tubular member 19 is inserted in the enlarged end of the bore and the extent of its insertion controlled by the taper oi the bore in member 89 so that turther inward movement of the pin or tubular member, when the controlling member 88 is screwed onto the coupler or connecting nipple, will be prevented.

1n Figure 6 the tubular member or pin employed in Figure e is shown in perspective, namely a pin provided with a singlev transverse slit or slot 81 and with a small central opening or port as at il1, like that shown in Figure 8, so that when the `separated segment-al portions ot the tube are broughtV into abutting relation at the outer ends, a small circular jet will be provided to permit a minimum discharge of sufficient to maintain combustion;'whereas in Figure 5 l show, in perspective,`a pin or tubular member 4:2 provided with the intersecting slits or slots 48, arranged similar to slots 20 in Figure 2 except that the inturned ends or lips ia are not formed to provide the central discharge port or opening as at 41 in Figure 6. lViith the construction shown in Figure 5, it is apparent that when the controlling member or sleeve is screwed inwardly either on the threaded nipple of the valve 16, or the coupler or connecting nipple 35 or 39 as the case may be, the separated segmental portions or" the pin or tubular member 42 will be brought into complete abutting relation at the outer ends and thereby completely shut oii theiiow of gas through said pin or member, thus in reality constituting a valve whereby the discharge of gas may be controlled; this construction therefore constituting a gas valve as well as a flow regulating device.

My invention, as disclosed in the drawing, provides a regulating device consisting of few parts; a device which is adapted to be connected to the usual or well known type ot gas-valve or cock and a construction which permits of regulation or' the gas tiow to a. nicety by reason otl the minute degree of adjustment obtainable through the threaded connection oi the controlling member or sleeve with the threaded nipple. At the same time, my improved device causes the gas stream to be discharged with a definite crosssectional coniiguration whereby the necessary velocity will be obtained and the immediato spread or flare of the discharged gas pre vented without, however, providing any restriction or interference to the gas flow, whether regulated for a minimum or a 1naX- imuin discharge, with the result that the momentum and eiliciency of the discharging gas is not destroyed; while adjustment to meet the variations in gas pressures may be easily and readily made by the user without in any way interfering with the connections or assembly of the respective parts of the burner.

lVhat I claim is A gas regulating device comprising a cylindrical member oi equal diameter througlr outand provided with a uniform bore terminating adjacent to one end whereby relatively thick side walls and one end wall are provided, a minute central opening in said end wall communicating with the bore and of smaller diameter than the diameter of the bore, said end of the member being provided with an external bevel of length less than the thickness of said end wall, the member being provided with slits radiating from the bore and said minute opening.

GUSTAVE F. SCHMIDT. 

